Video animation and screencast for PeoplePerHour home page

Description

We started doing a video animation on how our site works and the freelancer who was doing it could not complete it, although most of it is done.

The video is 2.5 minutes long. The script we have so far is shown in the video below, but could be improved

the link to the video is below
http://www.screencast.com/t/NWMxYmZiOD

What we need is a video to be done either from scratch and follow roughly the same script OR this one to be edited. Will probably be easier to do it from scratch. We do want to change the intro bit though to the below :

Show a client sitting on a busy desk, blackboard with to-do list in the background, and consecutive bubbles / clouds coming out of his/her head conveying what they are thinking of .. (ie I am running my to do list through my head ) So first comes 'revamp my website'... then another one with write a press release ..and so on..

Any further suggestions / improvements to the animation are welcome. We want this turned around fast.

The following assets can be released (or recreated)
4 Flash files that run for 5-20 seconds each for the animated segments
Camtasia Studio 6 original screencast recordings (.camrec and .camproj
files) for the screencast sections
Several images (your inbox, two blog screenshots, pay button etc)
Original WAV files of my narration

PLEASE SPECIFY HOW MUCH OF THE EXISTING ANIMATION YOU NEED TO COMPLETE OR WHETHER ITS EASIER TO JUST DO FROM SCRATCH AND AT WHAT PRICE